Title :
DPCM coding of images presented in a pruned quadtree form
Author :
Vergopoulos, S.A. ; Sangriotis, M.S. ; Kossionides, C. Metaxaki
Author_Institution :
Dept. of Inf., Athens Univ., Greece
fDate :
3/14/1996 12:00:00 AM
Abstract :
A new efficient method, based on a differential PCM technique, for encoding the leaves of a pruned quadtree is presented. Solutions to the problems of causality maintenance during tree scanning-encoding and of fast neighbour finding are described. The result is a constant wordlength code with a remarkable rate-distortion performance
Keywords :
data compression; differential pulse code modulation; image coding; trees (mathematics); DPCM coding; causality maintenance; constant wordlength code; differential PCM technique; fast neighbour finding; pruned quadtree form; rate-distortion performance; tree scanning-encoding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960352
